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What Spark Plugs do you guys run?

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Old 01-22-03, 02:52 AM
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Against The Flow.

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What Spark Plugs do you guys run?

Time for some new plugs on my car. This will be the first time i've changed the plugs on my car, looks like the old ones were NGK, but i'm not sure what model NGK'S they were. What do you guys run? And will it be neccessary to change my wires aswell?

Thanx for responding!
Old 01-22-03, 03:05 AM
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i run all leading plugs on mine.

dont buy into the hype of ultra-priced plugs...they wont make a difference. regular oem replacements will do.
Old 01-22-03, 03:26 AM
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Originally posted by kep0ne
i run all leading plugs on mine.

dont buy into the hype of ultra-priced plugs...they wont make a difference. regular oem replacements will do.
What does running all leading plugs do for you?
Old 01-22-03, 04:10 AM
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yea. i have to know what all leading plugs does now also. do leading plugs have a different heat range or something or is there a slight difference in gap?
Old 01-22-03, 04:12 AM
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oh yea i believe in some type of good spiral core wires. as to make sure all the juice gets to the plugs properly.....
Old 01-22-03, 04:21 AM
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so any specific plugs come to mind?
Old 01-22-03, 04:25 AM
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I'm running NGK BUR9EQPs & BUR7EQPs.
Old 01-22-03, 08:06 AM
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what plugs

I use NGK racing plugs the heat range is 11.... but you have to give your car serious hammer to keep em clean!
so if ya cars used day to day I would go with standard spec.
Old 01-22-03, 08:08 AM
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I'm running NGK BUR9EQPs & BUR7EQPs.
Same here. Works good - lasts a long time..
Old 01-22-03, 08:05 PM
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all leading just makes it easier not to mix anything up...although i dont know if mixing up the plugs does anything bad.

all leading, no problems running at all.
Old 01-22-03, 08:39 PM
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I've also always wondered what's the dif between the leading and trailing plugs. I know it's in my head somewhere (I read it before), but it'd be nice to get a refresher.
Old 01-22-03, 08:55 PM
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the only difference is the heat rating i think...leadings are 7, trailings are 9...
Old 01-22-03, 11:13 PM
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http://www.mazdatrix.com/ign-2.htm
Old 01-22-03, 11:22 PM
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https://www.rx7club.com/forum/showth...ht=running+all
Old 01-23-03, 12:05 AM
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I run regular ngk 9's all around, because my 7's were wearing out first.
Old 01-23-03, 01:44 AM
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i think ill change mine to 9s after reading that stuff...i gotta change my oil anyway
Old 01-23-03, 02:46 AM
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Who in the Hell is paying $10+ per plug for BUR9(7)EQPs? Half that is about right.

BTW, I think that's a lot of hooey about the platinum plugs. I'd like to see some backup info. on that.
Old 01-23-03, 07:58 AM
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Rotaries eat steel plugs in 10-15000 miles.
The platinum tips do not burn off nearly as fast as steel.
In piston engines they go about 100000 miles.
In rotaries, about 50000.
Old 01-23-03, 08:02 AM
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I change my plugs every 3 oil changes or so anyway. So they don't need to last that long.
Old 01-23-03, 08:36 AM
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plugs

In the UK the manual says 9s all round not different ones for leading and trailing.
Hmmmmmmmmmm???????
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